Pietro Piacentini (26 November 1898 – 25 November 1963) was an Italian Air Force general during World War II, Minister of Aeronautics, and Chief of Staff of the Italian Air Force from 19 June to 12 December 1944.

On October 16 of the same year, he left the Army and joined the newly established Regia Aeronautica.

After the Kingdom of Italy entered World War II on 10 June 1940, he participated in the operations against the British, planning and personally leading a raid on the British air base at Khartoum in August 1940, for which he was awarded another Silver Medal of Military Valor.

The fall of the Bonomi government in December, and the changed political scenario decreed the end of his career; he was also replaced as Chief of Staff of the Air Force by General Mario Ajmone Cat.

After the end of the war he was part of the National Council, later joining the Italian Socialist Party.